Sentences with phrase «built by organisms»

The team analysed the chemical composition of tiny shells built by organisms (foraminifera) that had lived in the water column and at the sea bottom before their shells became embedded in the seafloor sediments.

Not exact matches

The building block electronic and protonic actual occasions are, in the case of human beings, swept into vastly more complex, Chinese box - like sets of containing societies within which there are social levels that can be identified with cells, others which answer to Aristotle's levels of tissues and organs, and which finally are presided over by what Whitehead refers to as the regnant nexus, a social thread of complex temporal inheritance which, Whitehead suggests, wanders from part to part of the brain, is the seat of conscious direction of the organism as a whole, and answers to what in Plato and Aristotle is called the soul.

It is no longer simply a matter of cells organized by the hazards of natural selection, but of completed zoological units inventively building themselves into organisms on a planetary scale.

Since 1859, that great tree has been built up painstakingly by close study of fossils and modern organisms.

They contain no genetically modified organisms, which is independently verified by the Non-GMO Project, a non-profit organization that builds sources of non-GMO products, educates consumers, and provides verified non-GMO sources.

Geneticists and information scientists have built and are building models for the transition of organic molecules to self - replicating living organisms, based on theories of Earth's early development provided by astronomers, geologists, and oceanographers and on the evidence of fossilized microorganisms discovered by paleontologists.

However, the organism's genome was built by copying an existing plan and not through design — and its bloated genome of more than 1 million DNA bases was anything but minimal.

One theory holds that organisms age because of built - up genetic mutations that aren't weeded out by natural selection — a disease, say, that hits after your reproductive prime.

We currently have a very inadequate understanding of how to build closed ecosystems that are robust to perturbation by introduced organisms or nonbiological events (Biosphere 2, for example), and I suspect that the contained ecosystem problem will turn out to be much more challenging than the vast majority of space colonization advocates realize.

A sunshield for iron - oxidizing bacteria: These tiny organisms build their own sun umbrella by forming iron minerals or rust around their cells; this protects them from harmful UV rays.

By adding a new base pair, X and Y, to DNA's A-T and G - C pairs, researchers will enable organisms to build proteins from as many as 172 different amino acids.

Within the nucleus of each cell, long strands of DNA encode an organism's genes by combining just four chemical building blocks — adenine, guanine, cytosine, and thymine.

Modern stromatolites grow knee - high in Australia and the Bahamas, and the organisms that build them leave distinctive patterns in the mud pedestal that can't be duplicated by mere geologic manipulation.

In other words, there are only so many ways to build a simple animal, and Dendrogramma might have come out looking like the Ediacaran organisms by chance.

It turned out that just 1400 building blocks would suffice to synthesize 75 % of all natural product «chemical space,» which includes related compounds not made by any organism.

3 By making mathematical models of the carbon cycle in order to understand how oxygen — critical for large, complex organisms — was able to build up in the atmosphere because of changes in how organic matter decays;

Ocean acidification reduces the availability of carbonate ions that are required by many organisms — such as corals and mollusks — to build skeletons and shells.

Exactly these elements are needed by calcifying organisms — plankton, mussels, snails, crabs or corals — to build their shells and skeletons.

What this means is that by drinking more water, you'll allow your body to more efficiently rid itself of all the toxins that have been building up in your organism, giving you more energy and even speeding up your metabolism.

Accessing the company's mainframe, they discover that Stahl has built his own armada armed with weapons powered by irradiated Petrusite, powerful enough to tear living organisms apart.

The wall caption disclosing that Untitled (2013), a pink organism by the young Brazilian artist Maria Nepomuceno, was built of beaded drainpipe, ceramic, fibreglass, rope, resin and braided straw may have given Victoria Miro bragging rights, but had trouble holding its own under the masterful Alice Neel.

When stressed by sustained high temperatures, the coral organisms that build reefs sometimes expel the symbiotic algae living in their tissues, causing affected areas to turn white or pale.

The Cliffs of Dover, 100s of feet high and solid calcium carbonate, were built by living organisms when CO2 was 5 to 10 times higher than now.

The world's biggest structure built by living organisms is not Tokyo or New York.

Especially calcium carbonate skeleton building organisms are affected by the rapidly dwindling seawater pH... Continue reading →

Their interactive effects might arise because of the way the organism is built... or because of classical conditioning, produced by thelong history ofpairedoccurrence of emotionalresponses (p. 49, original MS.)